code: def _get_pandas_df(num_rows=20):
      return pd.DataFrame(
          {
              "A": np.arange(num_rows, dtype=np.int64),
              "B": np.random.rand(num_rows),
              "C": np.random.choice(["foo", "bar"], size=num_rows),
          }
      )
  
file_path: autogluon/common/tests/unittests/test_hash_pandas_df.py
imports: import tempfile
  from pathlib import Path
  import numpy
  import pandas
  from autogluon.common.loaders import load_pkl
  from autogluon.common.savers import save_pkl
  from autogluon.common.utils.utils import hash_pandas_df
label_desc: Use image node_id 1 for calling a global function with example usage: _get_pandas_df(num_rows) and returns: pd